On-song Federer into sixth straight final

Roger Federer reached his sixth consecutive US Open final at Flushing Meadows on Sunday with a virtuoso performance to defeat fourth seed Novak Djokovic in straight sets.

Federer won 7-6 (7-3) 7-5 7-5 in two hours and 34 minutes to set up a Monday night final against sixth seed Juan Martin del Potro of Argentina, who earlier in the day had beaten Rafael Nadal in straight sets at Arthur Ashe Stadium.